Portland Sea Conditions and Tide Table

Portland Sea Conditions table showing wave height, swell direction and period.

High and low tide times are also provided on the table along with the moon phase and forecast weather. Sunrise today is at 08:10 AM and sunset is at 04:09 PM.

Days 1–3 Weather Summary

Mostly dry. Low air temperatures (max 6°C on Sat afternoon, min 1°C on Fri morning). Mainly strong winds.

Days 4–6 Weather Summary

Mostly dry. Low air temperatures (max 6°C on Mon night, min 1°C on Mon morning). Mainly fresh winds.

Days 7–9 Weather Summary

Light rain (total 2mm), mostly falling on Fri night. Mild temperatures (max 9°C on Fri night, min 5°C on Thu morning). Winds increasing (light winds from the N on Thu morning, strong winds from the NW by Sat afternoon).

Days 10–12 Weather Summary

Some drizzle, heaviest during Sun afternoon. Very mild (max 12°C on Mon afternoon, min 7°C on Sun morning). Winds increasing (light winds from the WNW on Sun morning, strong winds from the W by Mon night).

Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
Friday
2
Saturday
3
Sunday
4
Monday
5
Tuesday
6
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
Wave Height Map
High Tide
10:29AM1.96m
11:02PM1.68m
11:17AM1.85m
11:59PM1.61m
12:16PM1.74m
1:07AM1.58m
1:25PM1.66m
2:14AM1.58m
9:27AM0.86m
2:34PM1.60m
9:49PM0.67m
9:53AM0.77m
4:16PM1.59m
10:24PM0.64m
10:10AM0.68m
5:41PM1.72m
11:04PM0.62m
6:05AM1.95m
6:32PM1.87m
6:49AM2.13m
7:15PM1.98m
7:30AM2.24m
12:52PM0.45m
7:57PM2.03m
8:10AM2.29m
1:34PM0.44m
8:38PM2.02m
8:49AM2.27m
9:18PM1.96m
Low Tide
4:15PM0.41m
4:18AM0.60m
4:57PM0.44m
5:06AM0.65m
5:48PM0.51m
6:07AM0.72m
6:55PM0.57m
7:24AM0.76m
8:03PM0.60m
8:37AM0.73m
9:04PM0.60m
9:54AM0.68m
12:27PM0.56m
10:03PM0.60m
1:24PM0.44m
10:55PM0.57m
2:26PM0.32m
11:36PM0.54m
12:23PM0.45m
00:14AM0.52m
1:02PM0.43m
00:55AM0.54m
4:39PM0.17m
1:43AM0.56m
Wave
height (m) 
direction
period (s) 
0.9
ESE
5
1.1
ESE
6
1
ESE
6
1.1
ESE
5
1.4
ESE
6
1.6
ESE
7
1.1
ESE
6
0.9
ESE
6
0.9
ESE
6
0.9
ESE
5
0.8
ESE
5
1
ESE
5
0.9
ESE
5
0.8
ESE
5
0.4
SW
10
0.3
SW
14
0.3
SW
13
0.2
WSW
13
0.2
WSW
12
0.3
WSW
6
0.5
WNW
4
0.6
W
4
0.7
W
4
1.2
WSW
6
1.1
SW
6
1.3
WNW
5
0.7
WNW
4
0.6
W
4
1
WSW
4
1.4
SW
6
1.1
SW
6
1.3
WSW
5
1.7
WSW
7
1.9
WSW
7
1.8
SW
7
1.9
WSW
7
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
cloud
part cloud
clear
clear
part cloud
clear
part cloud
clear
part cloud
cloud
cloud
rain showers
clear
clear
clear
part cloud
light rain
cloud
part cloud
part cloud
cloud
cloud
cloud
part cloud
some clouds
some clouds
some clouds
some clouds
some clouds
cloudy
some clouds
some clouds
some clouds
some clouds
clear
some clouds
cloudy
some clouds
clear
clear
some clouds
clear
some clouds
clear
some clouds
cloudy
cloudy
rain shwrs
clear
clear
clear
some clouds
light rain
cloudy
some clouds
some clouds
cloudy
cloudy
cloudy
some clouds
 km/h
30
NE
30
ENE
30
NE
35
NE
40
NE
35
ENE
30
NE
30
NE
25
NE
25
NE
25
NE
30
ENE
25
NE
25
NE
15
NE
15
NNE
15
NNW
15
NNW
10
N
20
NW
25
NW
20
WNW
25
W
25
WNW
35
NW
45
NW
25
NW
20
WNW
30
WSW
30
W
25
W
35
W
35
WSW
35
WSW
35
WSW
35
W
 mm 
2
1
max°C
2
4
3
4
6
6
3
3
3
3
4
6
5
5
3
3
4
6
6
7
7
7
8
9
9
8
7
8
10
11
11
12
11
12
11
11
Moonrise
11:25
11:38
11:51
12:07
12:28
12:58
1:41
2:44
4:04
5:32
7:00
8:24
Moonset
11:22
12:41
2:04
3:32
5:03
6:31
7:48
8:45
9:24
9:51
10:10
Sunrise
8:10
8:10
8:10
8:10
8:10
8:10
8:10
8:10
8:10
8:10
8:10
8:08
Sunset
4:09
4:10
4:10
4:12
4:13
4:14
4:15
4:16
4:17
4:19
4:20
4:21
Today's sea temperature in Portland is
11.1° C
(Statistics for 26 Dec 1981-2005 – mean: 10.9 max: 11.9 min: 10.0°C)
Issued (local time): 5 am Friday 26 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest